Smart gateway



FIG. 1 is a perspective view of a smart gateway;

FIG. 2 is a front elevational view of the smart gateway;

FIG. 3 is a rear elevational view of the smart gateway;

FIG. 4 is a left side elevational view of the smart gateway;

FIG. 5 is a right side elevational view of the smart gateway;

FIG. 6 is a top plan view of the smart gateway; and,

FIG. 7 is a bottom plan view of the smart gateway.

The broken lines in the drawings depict portions of the smart gateway that form no part of the claimed design. 

CLAIM The ornamental design for a smart gateway, as shown and described. 